Gasolene-saving device.



J. H. JOHNSON.

GASOLENE $AV!NG DEVICE.

APPLICATION FILED MAY17,1916.

1 ,198,92. Patented Sept. 19, 1916.

awowwto'z U177- 0579171022 we/Mm tion JAMES H. JOHNSON, OF BULLOCHVILLE, GEORGIA.

GAsoLENE-SAVING DEVICE.

- Application filed May 17, 1916.

To alluhomitmay concern.

Be it known that I, JAMES HAVEN J OHN- sox, a citizen of the United States, residing at Bullochville, in the county of Meriwether, State of Georgia, have invented a new and useful Gasolene-Saving Device;

and I do hereby declare the following to be, a full, clear, and exact nection with internal combustion engines for supplying air into the intake manifold in addition to that which is supplied through the ,carbureter.

In practical fields the details of construc may necessitate alterations falling within the scope of what is claimed.

A "further object of the invention is the provision of a valve of this kind having novel features of construction.

One of the features of construction is the provision of the valve proper, a section of the stem of which is flat where it passes through the bore of the valve casing, so that the air that is drawn into the manifold responsive to the condition of suction or partial vacuum in the intake manifold of the engine, will pass on each side of the fiat section of the stem, while the edges of the flat section will engage a restricted partof the bore, to guide the valve to its seat.

Another feature of the invention is the provision of a member on the end of the valve stem to additionally guide the valve to its seat, said member being adjustable to increase or "decrease the tensiorl of the spring on the valve stem. The invention comprises further features and combinations of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings, Figure 1 is a view in perspective, showing the improved valve as applied to the intake manifold of an internal combustion engine. Fig. 2 is a sec tional view on line 2-9 of Fig. 1., Fig. 3 is a sectional view on line 8-3 of Fig. 1. Fig. 4 is a sectional view on line of Fig. 2. Fig. 5 is a sectional view on line 5-5 of Fig. 2. I

Referring more especially to the drawings, 1 designates the usual form of mani- Specification of Letters Patent.

Patented Sept. 19, 19145. Serial No. 98,145.

fold, the wall of which is provided with a threaded opening 2, into which the reduced threaded end 3 of the valve casing 4 is threaded. One end of the bore 5 of the va ve casing is provided with a reducedportion 6 terminating in an outwardly curved valve seat 7, with which the yalve proper 8 cooperates. The valve 8 is provided with a valve stem 9. a section of which is flat, designated by the numeral 10 and the edges of which engage the wall of the reduced part 6 of the bore 5. The end portion 11 of the stem is provided with threads 12 which are engaged by the sleeve or member 13, which loosely fits one end of the bore 5.

Interposed between the shoulder 11 intermediate the larger portion of the bore 5 and the reduced part and the sleeve or member 13 is a coiled spring 15, which acts to normally hold the valve 8 to its seat. By virtue of the edges of the flat section 10 of the valve stem engaging the wall of the reduced part 6 of the bore the valve is guided toward and from its seat, so' as to insure the valve accurately seating. The valve casingv d at its outer end has a reduced threaded per tion 16 which screws into an opening 17 of a substantially spherical casing 18 (which is hollow) constituting means to receive the exterior air. The casing 18 is provided with diametrically oppositely arranged openings 19, through which the exterior air is drawn into the casing.

Responsive to the condition of suction or partial vacuum in the intake manifold of the engine, the valve 8 is unseated against the action of the coiled spring 15, thereby sucking air through the openings 19 into the casing 18 and thence through. the valve casing 4c, passing through the geduced part 6 of the bore on each side or face of the fiat section 10 of the valve stem 1'). Should thenginc be operating under a heavy strain or pull and the condition of suction is in creased. this extra or additional supply of air is not required, hence the increased condition of suction will draw the valve farther inwardly of the intake manifold, until the inner portion or end 20 of the longer cylindrical part of the valve stem engages the reduced portion 6 of the bore 5, thereby nearly cutting off the additional or extra supply of air. This engagement of the end 20 with the reduced portion 6 of the bore 5 is not sullicient to cut elf the entire passing through the intake manifold always remains superior in quality.

The valve 8 is provided with an extension 21 fitting into the reduced part 6 of the bore, to prevent the additional air from entering the intake manifold should the valve "unseat when the condition of suction in the manifold of the engine is at minimum. The flat section 10 at each end blends off into the longer cylindrical section and the extension or shortercylindrical section 21, so that the intake of the additional air gradually blends off when the condition of suction-in the As'tl1e shorter cylindrical section or exten- $10!], :21 reaches said reduced portion. 6 of the bore, the minimum condition of suction gradually blends off.

The invention having been set forth, What is claimed as new and useful is:

1. In combination with an intake manifold, a valve casing threaded into the-Wall of the manifold and having the inner end of its bore reduced terminating in a valve seat, a valve cooperating therewith and provided with a stem, said stem having a flat section and a cylindrical section, the flat section having its edges engaging diametrically opposite points of the {reduced end ofsaid bore, thereby g'uiding the valve to and from its seat, said cylindrical section of the stem designed to engage the reduced portion of the'bore when theyalve responds to the increased condition of suction 1n the intake manifold of the engine to reduce the intake of the additional air, and means to hold the valve normally seated.

2. In combination With the intake mani- I fold of an internal combustion engine, a valve casing threaded into the Wall of the .manifold and provided With a valve seat at its inner end, a valve cooperating with said seat, means formed on the [valve and engaging the bore of the valve casing toprevent the intake of the additional air should the condition of suction in the manifold of the engine be of minimum degree, saidvalve having a stem, means formed on the stem to prevent excessive supply of additional air should the condition ofsuction in the manifold of the engine be of a maximum degree,

means formed on the stem to admit additional 'air should the condition of suction in the manifold of the engine be of a degree intermediate theminimum and the maxi-' mum condition of suction, and means formed on the stem to permit the intake of additional. airto gradually blend off between the minimum and maximum condition'of suction. v

.In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. i

- JAMES H. JOHNSON. l/Vitnesses F. C. GRANT, L. E. HUDSON. 

